Are you going to use Windows Outlook? It is a bit annoying. Windows Outlook does not open OLM files, unlike macOS. Prior to finishing this job, you need to Importing OLM Files in Windows Outlook. The purpose of this paper is to provide a thorough ...

The OLM file format stores the contents of the Outlook mailbox on macOS, which makes it hard for Windows users to access Outlook. You need to change these OLM files into PST files before Windows MS Outlook can open them.
The method of convertin...